USB4 To Publish Later This Year

Reportedly doubles USB bandwidth
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The next-gen USB4 spec is scheduled to be published in the middle of this year, announced the USB Promoter Group.

The USB4 architecture, based on Intel’s recently introduced Thunderbolt protocol spec, is said to double the bandwidth of USB and enable multiple simultaneous data and display protocols.

It also enables two-lane operation using existing USB Type-C cables and up to 40Gbps operation over 40Gbps-certified cables, and allows multiple data and display protocols to efficiently share the total available bandwidth over the bus.

USB4 will be backward compatible with USB 3.2, USB 2.0 and Thunderbolt 3.

An updated USB Type-C specification is also planned to comprehend USB4 bus discovery, configuration and performance requirements, said the group, which added that the update is specifically targeted to developers at this time, with branding and marketing guidelines to follow after the spec is published. 

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